OPN Sound OS4000BL Dashlyte Bluetooth Bone-Conduction LED-Neckband Headphones with Microphone, Black

• Open-ear design; headphones rest outside your ears and use bone-conduction technology to send sound waves via mini vibrations through your cheekbones to your inner ears so you can listen to music while remaining aware of surroundings;• Frequency response: 20 Hz to 20 kHz; dynamic range and deep bass;• Bluetooth(R) v5.3 with wireless range up to 33 ft.;• Loops over the ears and around the back of the head for secure fit even during rigorous activities while providing all-day comfort fit; lightweight at only 0.917 oz. (26 g) for pain-free listening experience ;• Bright LED lights on band keep you visible at night;• Noise-cancelling microphone to make and take calls while on the go;• Sweatproof, rainproof, and splashproof (IPX5); protects against moisture and debris for long life ;• Listen to music or talk for up to 6 hours; takes up to 2 hours to charge; up to 360 hours standby time;• Lifetime warranty;• Includes USB-C(R) charging cable and user guide;